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| 1 | <?php |
| 2 | |
| 3 | namespace MediaWiki\Extension\AbuseFilter; |
| 4 | |
| 5 | use MediaWiki\Permissions\Authority; |
| 6 | use StatusValue; |
| 7 | use Wikimedia\IPUtils; |
| 8 | use Wikimedia\Rdbms\IConnectionProvider; |
| 9 | |
| 10 | /** |
| 11 | * This service allows code to lookup details about abuse_filter_log rows. |
| 12 | * |
| 13 | * @since 1.45 |
| 14 | */ |
| 15 | class AbuseFilterLogDetailsLookup { |
| 16 | |
| 17 | public const SERVICE_NAME = 'AbuseFilterLogDetailsLookup'; |
| 18 | |
| 19 | public function __construct( |
| 20 | private readonly IConnectionProvider $dbProvider, |
| 21 | private readonly AbuseFilterPermissionManager $afPermissionManager, |
| 22 | private readonly FilterLookup $filterLookup |
| 23 | ) { |
| 24 | } |
| 25 | |
| 26 | /** |
| 27 | * Returns the IP address associated with a given abuse_filter_log row identified by its afl_id. |
| 28 | * |
| 29 | * This method does NOT check whether the given {@link Authority} has the right to see IP |
| 30 | * addresses in general, but does check if the user can see each associated abuse_filter_log row. |
| 31 | * |
| 32 | * Callers are expected to log the access if the given {@link Authority} actually does view |
| 33 | * the IP address that was returned. |
| 34 | * |
| 35 | * @param Authority $authority The user who's trying to view the IP address. |
| 36 | * @param int $id The afl_id values for the rows |
| 37 | * @return StatusValue If a good status, the associated IP address is stored as the value of the status. |
| 38 | * The IP address may be empty string if the row is more than $wgAbuseFilterLogIPMaxAge seconds old |
| 39 | * or $wgAbuseFilterLogIP was false when the row was created. |
| 40 | */ |
| 41 | public function getIPForAbuseFilterLog( Authority $authority, int $id ): StatusValue { |
| 42 | $row = $this->dbProvider->getReplicaDatabase()->newSelectQueryBuilder() |
| 43 | ->select( [ 'afl_filter_id', 'afl_global', 'afl_ip_hex', 'afl_user_text' ] ) |
| 44 | ->from( 'abuse_filter_log' ) |
| 45 | ->where( [ 'afl_id' => $id ] ) |
| 46 | ->caller( __METHOD__ ) |
| 47 | ->fetchRow(); |
| 48 | |
| 49 | if ( !$row ) { |
| 50 | return StatusValue::newFatal( 'abusefilter-log-nonexistent' ); |
| 51 | } |
| 52 | |
| 53 | $filter = $this->filterLookup->getFilter( $row->afl_filter_id, $row->afl_global ); |
| 54 | if ( !$this->afPermissionManager->canSeeIPForFilterLog( $authority, $filter, $row->afl_user_text ) ) { |
| 55 | return StatusValue::newFatal( 'abusefilter-log-cannot-see-details' ); |
| 56 | } |
| 57 | |
| 58 | return StatusValue::newGood( $row->afl_ip_hex ? IPUtils::formatHex( $row->afl_ip_hex ) : '' ); |
| 59 | } |
| 60 | |
| 61 | /** |
| 62 | * Returns the IP addresses associated with given abuse_filter_log rows identified by their afl_id. |
| 63 | * |
| 64 | * This method does NOT check whether the given {@link Authority} has the right to see IP |
| 65 | * addresses in general, except for temporary account IPs, but does check if the user can see |
| 66 | * each associated abuse_filter_log row. |
| 67 | * |
| 68 | * Callers are expected to log the access if the given {@link Authority} actually does view |
| 69 | * the IP address that was returned. |
| 70 | * |
| 71 | * If only ever looking up one IP, callers are advised to use |
| 72 | * {@link AbuseFilterLogDetailsLookup::getIPForAbuseFilterLog} instead. |
| 73 | * |
| 74 | * @stable to call |
| 75 | * @param Authority $authority The user who's trying to view the IP address. |
| 76 | * @param int[] $ids The afl_id values for the rows |
| 77 | * @return string[]|false[] The IPs found with indexed by the associated afl_id. The IP is false if the user cannot |
| 78 | * see the IP. The IP is an empty string if the row is more than $wgAbuseFilterLogIPMaxAge seconds old, |
| 79 | * no such afl_id exists, or $wgAbuseFilterLogIP was false when the row was created. |
| 80 | */ |
| 81 | public function getIPsForAbuseFilterLogs( Authority $authority, array $ids ): array { |
| 82 | $rows = $this->dbProvider->getReplicaDatabase()->newSelectQueryBuilder() |
| 83 | ->select( [ 'afl_filter_id', 'afl_global', 'afl_ip_hex', 'afl_id', 'afl_user_text' ] ) |
| 84 | ->from( 'abuse_filter_log' ) |
| 85 | ->where( [ 'afl_id' => $ids ] ) |
| 86 | ->caller( __METHOD__ ) |
| 87 | ->fetchResultSet(); |
| 88 | |
| 89 | $returnArray = array_fill_keys( $ids, '' ); |
| 90 | foreach ( $rows as $row ) { |
| 91 | $filter = $this->filterLookup->getFilter( $row->afl_filter_id, $row->afl_global ); |
| 92 | if ( !$this->afPermissionManager->canSeeIPForFilterLog( $authority, $filter, $row->afl_user_text ) ) { |
| 93 | $returnArray[$row->afl_id] = false; |
| 94 | } else { |
| 95 | $returnArray[$row->afl_id] = $row->afl_ip_hex ? IPUtils::formatHex( $row->afl_ip_hex ) : ''; |
| 96 | } |
| 97 | } |
| 98 | |
| 99 | return $returnArray; |
| 100 | } |
| 101 | |
| 102 | /** |
| 103 | * Groups the provided list of afl_id values by the user who triggered the abuse_filter_log row to be created. |
| 104 | * |
| 105 | * @stable to call |
| 106 | * @param int[] $ids The afl_id values for the rows |
| 107 | * @return int[][] The afl_id values grouped by the user who triggered theabuse_filter_log row to be created. |
| 108 | */ |
| 109 | public function groupAbuseFilterLogIdsByPerformer( array $ids ): array { |
| 110 | $rows = $this->dbProvider->getReplicaDatabase()->newSelectQueryBuilder() |
| 111 | ->select( [ 'afl_user_text', 'afl_id' ] ) |
| 112 | ->from( 'abuse_filter_log' ) |
| 113 | ->where( [ 'afl_id' => $ids ] ) |
| 114 | ->caller( __METHOD__ ) |
| 115 | ->fetchResultSet(); |
| 116 | |
| 117 | $returnArray = []; |
| 118 | foreach ( $rows as $row ) { |
| 119 | if ( !array_key_exists( $row->afl_user_text, $returnArray ) ) { |
| 120 | $returnArray[$row->afl_user_text] = []; |
| 121 | } |
| 122 | |
| 123 | $returnArray[$row->afl_user_text][] = $row->afl_id; |
| 124 | } |
| 125 | |
| 126 | return $returnArray; |
| 127 | } |
| 128 | } |